Leather-working machine.



I. G. LEVIN.

, l LEATHER WORKING MACHINE.

APPLICATION FILED MAR. 26, 1908. v

PATENTED AUG. 4, 1908.-

s sums-SHEET 1.

mreofa/ PATENTED AUG. 4,1908.

1. G; LEVIN. v LEATHER WORKING MACHINE.-

3 SHEETS-SHEETZ.

APPLICATION FILED MAR. 26, 1908.

A/fka LEATHERWORKING MACHINE.

APPLIOATION PILED MAR. 26, 1908 /a U l8 'ISAAG G. LEVIN, OF CHICAGO,ILLINOIS.

LE ATHER-WORKING MACHINE Specification of Letters Patent.

Patented Aug. 4;, 1908.

Application filed March 26,1908. Serial N 0. 423,447.

To all whom it may concern: I I

Be it known thatl, IsAAo G. LEVIN, a citizen of the United States,residing at Chicago, in the county of (look and State of Illinois, haveinvented a certain new and useful Improvement in Leather-WorkingMachines, of which the following is a specification.

This invention relates to leather working machines designed. forglazing, ironing or rolling leather.

The object of the invention is to provide automatic means for'performingthese operations upon a leather surface.

The invention consists in a rotating wheel provided with a plurality ofironing, glazing or rolling tools in combination with means for applyingheat to and continuously heating the ironing and rolling tools.

More particularly it consists in means for doing this heating by the useof gas; in means for varying the position of the leather with referenceto the wheel and consequently varying the pressure of the tools u on theleather and in means for automatical y'shifting the leather sup ortingdevices so that as it is moved to an from the wheel a uniform ressure isexerted by each particular toolcarried by the wheel upon all portions ofthe surface of the leather which is to be operated upon.

It further consists in a device which can be easily and cheaply made andinstalled, which is efficient in operation and is not readily liable toget out of order, and in details of construction which will be hereaftermore fully described and claimed.

Referring to the drawings, Figure 1' is a,

front view of a complete assembled machine showing the device of thisinvention in its preferred form. Figs. 2 and 3 are opposite side viewsof the essential ironing arts of the de vice.. Fig. 4 is a detail view 0a roller. Fig.

5 is a vertical sectional end view taken on the lines a, a, of Fig. 2.Fig. 6 is aperspective view showing the prmcipal leather supportingdevice or bed. Fig. 7 is a view partially in section showing certainsprings which will be hereafter described. Fig. 8 is abottom view ofFig. 7. Fig. 9 is a sectional detail view of a shaft having the leathersupportingframe eccentrically mounted thereon for purposes to behereafter described. I I I The operative parts of the mechanism aremounted upon two parallel supporting frames composed of the horizontalparts 10 bearings 18 formed in the and the vertical parts 11. Theseparts are as just stated and as best shown in Fig. 5 placed parallel toeach other so that there is room between them .for a wheel 14, rigidlymounted upon the shaft 16, by means of the key 17 or other suitablemeans, to freely rotate between the upright members 11 on the upperportions 20 On one end of this shaft 18 is a gear wheel 22 meshing withtwo pinions 23 and 24, the latter being mounted upon a shaft 25 carryingpulleys 26 and 27 to which power is applied from any suitable source inany suitable manner to rotate the wheel through the mechanism described,in the ordinary manner. The outer end of this shaft 25 is preferablysupported upon a suitable frame member 30. The

of the members 11.

many means which may be provided for mechanically rotating this shaft 25with the wheel upon it, andany equivalent device for doing this may beused without departing from the spirit of this invention. The spokes ofthe wheel 14 are connected together at their outer ends by rim members35 and projecting from the outer surface of.

this rim 35 at any suitable points are lugs 36. These lugs 36 are asshown made .in two parts secured to the rim 35 by screws or pins or byany suitable means. The two parts of the lugs are adapted to'be adjustedslightly to and from each other by use of the elongated slots 31 and tobe secured or clamped together by the bolts 32. In the particular designhere illustrated the lugs are laced one opposite each s oke butmanifestly other lugs may be p aced between spokes if desired withoutdeparting from this invention. Between the halves of the lugs 36 thereis detachably secured by the mechanism just described an ironing orlazing member 38. An ironing member being shown in the drawing. Theseironing members are made of short pipe preferably of metal, so that theouter surfaces or that portion of each surface away from the center ofthe wheel performs the ironing function as it passesleather placedadjacent to the path of travel of the ironing members but manifestlythese tubular ironing members I 38 may be made of glass for glazing orburnishing if desired.

' Around the circumference of the wheel, a

little inside the rim 35, is a circular hollow gas pipe 40 havingconnected to it adjacent to each tubular member 38 a pipe member41-4243-44, the latter portion 44 extending inside the adjacent pipe 38and having perforations therein as shown in Fig. 4 inside the pipe 38,so that gas escaping from said perforations may be burned within thepipe or ironing member 38 for the purpose of eating the same. Thiscircumferential pipe 40 is connected at some suitable point in itslength to a pipe 46 having its opposite end 48 entering a hollow chamber4.9 within one end of the shaft 16 heretofore described. This shaft 16has a gas tight connection permitting rotation of the shaft withreference to the stationary pipe 52 having its lower end 53 connected toany suitable source of gas supply. Any mechanism which will permitrotation of the shaft 16 and the bearing 18 and still permit theadmission of gas from the pipe 52 to the chamber 49 in the shaft 16while the wheel is rotating may be used-without departing from thespirit of this invention. The particular means here provided consists inproviding the end of the pipe 52 with a flange 55 to which is rigidlyconnected a hollow pipe stem 56 extending inside of a hollow passage wayin the end of the shaft 16 and terminating in the packing head 57. Thisstem 56 is screw threaded into the flange 55 at 58 as shown.

From the foregoing it will readily be seen that when the wheel 14 isrotated by the power mechanism described and gas is applied to the pipe52 it will pass through said pipe into the chamber 49 thence through thepipe 56 into the circular pipe 40 from which it passes through thedifferent sets of pipes 42 into each of the ironing members 38 with theresult that they are heated by the lighted gas which escapes thereinthrough the orifices 44. It thus appears that the circumference of thewheel is provided with a series of continuously gas heated ironingmembers which may be used for ironing leather or other suitable materialprovided the leather is brought into suitable contact with the irons atthe proper times and places. The mechanism for doing this will now bedescribed. J ournaledin the lower frame members 10 at suitable points asshown in Figs. 2 and 3 are two shafts 60 and 61 each carrying pinions 62and 63 which mesh into worms 64 and 65 upon a shaft 66 journaled insuitable bearings 68 and 69 and adapted to be rotated by the hand wheel70 bearing the handle 71. This shaft 66 is prevented from moving endwiseby the engagement of the worms 64 and 65 with the supporting members 68and 69 so that rotating the hand wheel 70 and consequently the shaft 66causes the pinions 62 and 63 to rotate and consequently rotate theshafts 60 and 61. On these shafts 60 and 61 and between the frames 10are mounted eccentrics 72 which fit into and engage the lower members 74of a frame 75 (best seen in Fig. 6). The result of this is that as theshafts 60 and 61 are rotated this whole frame is moved to differentpositions depending upon the eccentricity of the eccentrics and theirrelative sizes (manifestly they may be of different sizes) and the wholedevice is so located and arranged that rotating the shaft 66 thereforemoves the curved bed member 78 of this supporting member toward and fromthe center of the wheel, along the line of radius of the wheel and theradius of curvature of the surface 78. The bed surface 78 is so locatedthat as best shown in Figs. 2 and 3 it is normally just in contact withthe ironing members 38 as the wheel 14 is rotated. In order to vary thepressure of these ironing members 38 upon leather placed upon this bed78 the bed itself is mounted upon pins or rods 80, best seen in Fig. 7,entering springs 81 bearing against blocks 82 screw threaded at 83 intoexternal casings 84. The lower ends of the rods contain thumb screws 86,screw threaded at 87, upon these rods, but the rods 80 slide freelythrough the blocks 82 from which it willbe seen that the tension of thesprings 81 may be adjusted by first screwing the blocks 82 into thecasings 84 and then tightening 9 the thumb screws 86 upon the rods 80 orby reversing the operation as required.

By properly adjusting the tension of these spring devices supporting thebed 78 and by properly proportioning the eccentricities and sizes of thecams 72 it is possible to so arrange the device that rotating the shaft66 in either direction will promptly and suitably adjust the position ofthe leather bearing surface or bed 78 with reference to the path oftravel of the ironing surfaces 38 with the result that leather placedupon this bed 78 is suitably acted upon by the hot irons 38. When it isdesired to equip the machine with rollers instead of irons the operatorsimply removes the lugs 36 and attached parts and substitutes thereforthe lugs 90 with attached rollers 91 pivoted thereto at 92 as shown inFig. 4. By making the bearing 92 upon gas pipes 43 having theperforations 44 the rollers 91 may be heated just as the ironing membersare; this because the rollers 91 are preferably hollow, cylindricalsurfaces carried from suitable hubs by the spokes, 93.

The claims are:

1. In a device of the class described, the combination of a suitablesupporting member, mechanism carrying a plurality of working members,means for heating said working members and means for moving said membercarrying the working members in such a way that the working members aresuccessively moved over said supporting surface.

2. In mechanism of the class described, the combination of a curved,leather supporting surface, an adjacent movable member carryingaplurality of working members,

means for heating said Working members the whole so arranged that assaid movable member is moved the working members are successively movedoversaid curved surface.

3. In a device of the class described, in combination With a suitablecurved surface adapted to have leather placed thereon, a wheelcontaining a plurality of working irons, means for heating said workingmembers, and means for rotating said wheel in such a way that saidworking members successively pass over and in close contact With thecurved surface.

4. In mechanism of the class described, the combination of a rotatablewheel, means upon the-circumference of the wheel capable of ironing,means for supplying heat to said ironing means while the wheel isrotating, a

curved surface corresponding in curvature to the circumference of saidwheel at the circumferential line on which said ironing membersare'located and means for adjusting the relative positions of the wheeland supporting member for the purposes set forth.

5. In mechanism of the class described, the combination with a rotatablewheel; a plurality of hollow tubular ironing members upon thecircumference of the wheel, as connections between each of said tubuIarmembers and the hub of the wheel and means for supplying gas through thehub of the wheel to said ironing members as the wheel is rotated.

6; In mechanism of the class described,

the combination of a suitable supporting frame, a shaft thereon, a wheelon said shaft, means at one side of said frame for powerfully rotatingsaid shaft and wheel, a plurality of ironing surfaces mounted about thecircumference of said wheel, means including a passage Way through theshaft of the wheel for heating each of said ironing devices by admittinggas thereto.

In Witness whereof, I have hereunto subscribed my name in the presenceof two Witnesses.

ISAAC G. LEVIN. Witnesses:

DWIGHT B. OHEEVER, C. J. OHRISTOFFEL.

